Antidazzle fitting for head lamps



March 6, 1934. TALBOT 1,950,071

ANTIDAZZLE FITTING FOR HEAD LAMPS Filed April 28, 1933 IJUUUD UD [IDIJIJUU HUUUUI] HDIJDD Smwmrfoweeb 7245077 F'atented Mar. 6, 1934 UNITED STATES 1,950,071 ANTIDAZZLE FITTING FOR HEAD LAMPS Stanley Edward Talbot, Merton Park, England Application April 28,1933, Serial No; 668,424 In Great Britain April 29, 1 932 3 Claims.

This invention relates to anti-dazzle fittings for headlampsof the type which provide a plurality of concentric spaced-apart rings for dividing the beam.

It has been proposed to support such rings by means of a vaned element in the form of a spider.

The present invention, which embodies such an arrangement, has for its primary object to minimize cost of production by an improved method of construction.

, According to the present invention, each of the rings is composed of a number of sections, each section being in the form of an arcuate strip which subtends the angle between one vane of the spider and an adjacent vane, and is secured at its respective ends to said vanes. Thus, in the case of a spider being provided which has four vanes set at 90 degrees to one another, a complete ring is composed of four distinct sections situated between the various vanes of the spider. Each section can be made from a strip of metal of the requisite length and width which is simply bent to the required arcuate form, and this method of construction cheapens the cost of production as compared with constructions which embody complete rings made in one piece.

The ring sections may be secured to the spider vanes in any suitable fashion and one convenient method is to form each ring section with one, two or more tongues projecting from each of its ends, and to form correspondingly positoned holes in the spider vanes through which said tongues are adapted to be passed and bent over on the other side of said vane. Each of the said holes in each spider vane may receive not only a tongue of a ring section situated on one side of said vane, but also a tongue of the adjacent section of the same ring which is situated on the other side of said vane, one of said tongues being bent inwardly and 4 the other outwardly.

The preferred form of the invention as described in the last preceding paragraph is shown in the accompanying drawing, wherein:-

Figure 1 is a face view of the device showing only one of the rings for the sake of clearness a portion of the device being broken away.

Figure 2 is a fragmentary view to an enlarged scale showing the method of securing the ring sections to the vanes.

Figure 3 is a plan view of the vaned member, all of the rings having been removed for the sake of clearness.

Figure 4 is a perspective view of one of the ring sections.

Figure 5 is a face view of the complete antiglare device, drawn to a reduced scale.

Referring to the drawing, the device comprises a frame ring 5 and radiating vanes 6 which are either formed integrally with said frame ring or are made separate and affixed thereto, the said vanes being connected at their inner ends by a disc 7 which preferably is made integral with said vanes. An inner tube 8 is secured to the disc '7 and the vanes radiate from said inner tube 8 after the fashion of a spider, the planes of said vanes lying along and intersecting at the axis of the device.

Each of the beam-constricting rings 9, only one of which is shown for the sake of clearness in Figure 1, is composed of a number of arcuate sections of the form shown in Figure 4, each section being designed to subtend the angle between two adjacent vanes 6 and being formed with projecting tongues 10 at each of its ends.

In the course of assembling the device, the tongues 10 of the ring sections are engaged into appropriate slots 11 formed in the vanes 6, each said slot 11 in a vane receiving not only a tongue of a ring section on one side of said vane but also a tongue of a section located on the other side of said vane, one of said tongues being bent upwardly and the other downwardly as shown in Figure 2.

In certain of the spaces between the vanes 6, for instance, in the two lowermost spaces, some of the ring sections which normally would form continuations of ring sections provided in the upper spaces, may be omitted. This may apply with every alternate ring as shown in Figure 5, so that between adjacent complete rings there are provided half rings which occupy only the spaces in the upper half of the device.

The vanes 6, when made integral with the outer ring 5, and the inner disc 7, are formed with neck portions 12 which are bent through a right-angle in order to give the correct setting to said vanes.

I claim:

1. A headlamp anti-glare device comprising a spider composed of radiating vanes connected to an outer frame ring, a plurality of slots formed in said vanes in spaced relation between the inner and outer ends thereof, a plurality of beamconstricting rings each composed of a number of arcuate sections corresponding to the number of vanes and situated in the spaces between said vanes and tongues formed on the ends of said ring sections, said tongues being passed through the slots in the vanes and then bent over.

2. A headlamp anti-glare device comprising a spider composed of radiating vanes formed integral with a centre disc and integral with an outer frame ring and bent through a. right angle so that they lie in planes which lie along and intersect one another at the axis of the device, an inner tube attached to the centre disc and to which are secured the inner ends of the said vanes, a plurality of slots formed in said vanes in spaced relation between the inner tube and outer ring, a plurality of beam constricting rings each composed of a number of arcuate sections corresponding to the number of vanes and situated in the spaces between said vanes, tongues formed on the ends of said ring sections, the tongues of two adjacent sections of each ring being passed through the same slots in a vane and bent one in an upward direction and the other in a downward direction in the course of manufacturing the device.

3. A headlamp anti-glare device comprising a spider composed of radiating vanes formed integral with a centre disc and integral with an outer frame ring and bent through a right angle so that they lie in planes which lie along and intersect one another at the axis of the device, an inner tube attached to the centre disc and to which are secured the inner ends or the said vanes, a plurality of slots formed in said vanes in spaced relation between the inner tube and outer ring, a plurality of beam constricting rings each composed of a number of arcuate sections corresponding to the number of vanes and situated in the spaces between said vanes, tongues rings similarly built and attached to the vanes 4 and interposed between the complete built-up rings in some of the spaces between the vanes.

STANLEY EDWARD TALBOT. 

